Mars wasn’t always so dry and barren – the large fluvial features on its surface betray a past brimming with flowing water. Along with clear evidence of liquid, salty water patches still existing today, evidence of ancient mega-tsunamis has also recently been uncovered. If these were generated by huge impacts, then there had to have been a sizable ocean residing on the surface once upon a time.
Our nearest celestial compatriot continues to surprise us. A team of researchers from the Southwest Research Institute (SwRI) has just spotted two new lunar craters, one of which – at an age of 16 million years – is decidedly young, geologically speaking. Both are less than 2 kilometers (1.2 miles) across.
The beginning of life on Earth might have been caused by one of the most violent phenomena our Sun can produce: superflares.
The passing of time has puzzled humans for millennia, and while our understanding of the universe has become deeper and deeper, the true nature of time still escapes us. The latest attempt to bring some clarity into the matter takes a bold stance: Dark energy helps to push time forward.
For many people it is a question of when, not if, we discover intelligent life beyond the Solar System. But, when that time comes, how should the public be informed about what would arguably be the biggest story in human history?
A Japanese company has announced that it wants to create artificial meteor showers, and some reports indicate they may do so during the 2020 Tokyo Olympics.